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Java Programming - Java.lang Class - Discussion

@ : Home > Java Programming > Java.lang Class > Finding the output - Discussion

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"Hold a true friend with both hands."
- (Proverb)
17. 

What will be the output of the program?

System.out.println(Math.sqrt(-4D));
[A]. -2
[B]. NaN
[C]. Compile Error
[D]. Runtime Exception

Answer: Option D

Explanation:

It is not possible in regular mathematics to get a value for the square-root of a negative number therefore a NaN will be returned because the code is valid.

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